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11 条记录 (耗时 0.015 秒)

    Flexible base materials, their preparation and their use for printed circuits
    3.
    发明授权
    Flexible base materials, their preparation and their use for printed circuits 失效
    柔性基材，其制备方法及其在印刷电路中的应用

    公开(公告)号：US4496794A

    公开(公告)日：1985-01-29

    申请号：US617821

    申请日：1984-06-04

    申请人： Roland Darms ,  Harry Beyeler ,  Theobald Haug

    发明人： Roland Darms ,  Harry Beyeler ,  Theobald Haug

    IPC分类号： B32B15/04 ,  B32B15/08 ,  B32B15/088 ,  H05K1/03 ,  H05K1/00

    CPC分类号： H05K1/0346 ,  Y10T428/31681 ,  Y10T428/31721 ,  Y10T428/31725

    摘要： Flexible base materials consisting of a metal foil and a film of a polyamide, polyamide-imide and/or polyimide, firmly adhering thereto without an intermediate layer, the film being obtained by heating a polyamide, polyamide-amidoacid and/or polyamide-acid containing the structural units of the formulae I and II.The individual symbols are as defined in claim 1.The base materials according to the invention are useful for the production of flexible printed circuits.

    摘要翻译： 柔性基材由金属箔和聚酰胺，聚酰胺 - 酰亚胺和/或聚酰亚胺的膜组成，牢固地粘附在其上而没有中间层，该膜通过加热聚酰胺，聚酰胺 - 酰胺酸和/或含有 式I和II的结构单元。 各个符号如权利要求1中所定义。根据本发明的基础材料可用于生产柔性印刷电路。

    Flexible, printed circuit
    6.
    发明授权
    Flexible, printed circuit 失效
    柔性印刷电路

    公开(公告)号：US4562119A

    公开(公告)日：1985-12-31

    申请号：US641893

    申请日：1984-08-17

    申请人： Roland Darms ,  Harry Beyeler ,  Theobald Haug

    发明人： Roland Darms ,  Harry Beyeler ,  Theobald Haug

    IPC分类号： B32B15/04 ,  B32B15/08 ,  B32B15/088 ,  H05K1/03

    CPC分类号： H05K1/0346 ,  Y10S428/901 ,  Y10T428/31681 ,  Y10T428/31721

    摘要： A flexible, printed circuit with excellent adhesion of the printed tracks, which is obtained by coating one side of a metal foil without an intermediate layer with a polymer consisting of a polyamide, polyimide or polyamide-imide containing siloxane groups, which is obtainable by crosslinking a silicon-modified polyamide prepolymer, polyamide-acid prepolymer or polyamide-amido-acid prepolymer of the formula I, heating the coated metal foil in the temperature range from 50.degree. to 300.degree. C. till a tack-free coating is obtained, exposing the opposite side of the coated metal foil, which side is provided with a photolacquer, through a photo mask, and developing the exposed metal foil.

    摘要翻译： 一种柔性印刷电路，其具有优异的印刷轨迹的粘合性，其通过用包含聚酰胺，聚酰亚胺或含有硅氧烷基团的聚酰胺 - 酰亚胺组成的聚合物涂覆金属箔的一侧而不具有中间层而获得，其可通过交联 硅改性聚酰胺预聚物，聚酰胺 - 酸预聚物或式I的聚酰胺 - 酰胺酸预聚物，在50℃至300℃的温度范围内加热涂覆的金属箔，直到获得无粘性涂层 涂覆的金属箔的相对侧，该侧通过光掩模设置有光致镀层，并且显影出暴露的金属箔。

    Process for separating mixtures of 3- and 4-nitrophthalic acid
    7.
    发明授权
    Process for separating mixtures of 3- and 4-nitrophthalic acid 失效
    分离3-和4-硝基邻苯二甲酸的混合物的方法

    公开(公告)号：US4284797A

    公开(公告)日：1981-08-18

    申请号：US44122

    申请日：1979-05-31

    申请人： Peter Furrer ,  Harry Beyeler

    发明人： Peter Furrer ,  Harry Beyeler

    IPC分类号： C07C67/00 ,  C07C201/00 ,  C07C201/16 ,  C07C205/57 ,  C07C79/46

    CPC分类号： C07C201/16

    摘要： A novel improved process for separating mixtures of 3- and 4-nitrophthalic acid is described. The said process comprises treating a mixture of 3- and 4-nitrophthalic acid, which mixture is free from inorganic acid residues, in an aqueous-organic medium containing 1-20 percent by volume of water, at a temperature of between 20.degree. and 100.degree. C., stepwise with a base capable of forming salts of 3- and 4-nitrophthalic acid, which salts are essentially insoluble in the reaction medium, the treatment being carried out by adding base until a pH value of about 2.8 is obtained, separating the precipitating product consisting mainly of a 3-nitrophthalic acid mono-salt, subsequently precipitating, by the addition of further base, a product consisting principally of a 4-nitrophthalic acid salt, and finally converting the resulting nitrophthalic acid salts separately into the corresponding free acids, and optionally purifying these. The 3- and 4-nitrophthalic acid can be obtained by the process according to the invention in a simple manner in an isomer-free form and in good to very good yields.

    摘要翻译： 描述了一种用于分离3-和4-硝基邻苯二甲酸的混合物的改进方法。 所述方法包括在含有1-20体积％水的含水有机介质中，在20至100℃的温度下处理3-和4-硝基邻苯二甲酸的混合物，该混合物不含无机酸残基 ℃，与能够形成3-和4-硝基邻苯二甲酸盐的碱分步，该盐基本上不溶于反应介质，该处理通过加入碱进行直到获得约2.8的pH值，分离 主要由3-硝基邻苯二甲酸单盐组成的沉淀产物，随后通过加入另外的碱沉淀出主要由4-硝基邻苯二甲酸盐组成的产物，最后将所得的硝基邻苯二甲酸盐分别转化为相应的无 酸，并任选地纯化这些。 3-和4-硝基邻苯二甲酸可以通过本发明的方法以简单的方式以无异构体的形式和良好至非常好的产率获得。